Eraser guard



May 25, 1943.

c. J. LEONARD 2,319,871

ERASER GUARD Filed NOV. 14, 1941 f-1 J3" v""|. um'.

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Patented May 25, 1943 ERASER GUARD V Charles J. Leonard, Chicago, lll.,assignor to The M. B. Cook Company, Chicago, Ill., a corporation ofIllinois Application November 14, 1941, Serial No. 419,117

(Cl. 12o- 41) li Claims.

My invention relates to a device adapted to be used by typists or othersand is in the natureof a sheet protector adapted to be employed insuperimposed relation to a carbon copy sheet when it is desired to erasematerial on the original sheet and prevent the smudging or smearingofthe carbon copy sheet when the erasure is made on the original sheet.In practice erasures are made by the typist -without removing theoriginal sheet, the carbon transfer sheet and the carbon copy sheetlfrom the typewriting machine or the like. My protector is a convenientdevice which may be inserted preferably between the carbon face of thecarbon sheet and the face of the carbon copy sheet so that the carboncopy sheet is protected during any erasures on the top sheet and thepressure during erasing does not mark the carbon copy.

The invention has among its objects the production of a sheet protectordevice of the kind described that is simple, convenient, eflicient,attractive and inexpensive, and which may likewise provide aninexpensive advertising medium.

Many other objects and advantages of the construction herein shownanddescribed will beV obvious to those skilled in the art from thedisclosure herein given.

To this end my invention consists in the novel construction, arrangementand combination of parts herein shown and described and moreparticularly pointed out in the claims.

In the drawing, wherein like reference characters indicate like orcorresponding parts:

Fig. 1 is a view in elevation of my improved device partially concealedby the turned back associated original and carbon sheets with which itis adapted for use;

Fig. 2 is an enlarged top plan view of the device; and

Fig. 3 is an enlarged side elevation.

Referring to the drawing, I represents a body part of suitable material,preferably of tough, light weight and flexible material and of thedesired size. It is also a type of material which will not readilyabsorb or pick up the carbon which has been deposited on the carbon copysheet. It may be of a material that is transparent, translucent, oropaque, the transparent body having certain advantages which will behereinafter referred'to. This body l is provided with a handle 2 whichmay be integral with the body part or a separate piece secured theretoby rivets 3, or cement or in any other satisfactory manner. As will beseen from Fig. 3 the body part is preferably rounded on a portion of thecorners as indicated at 4 so as to be less likely to snag on the sheets.The handle 2 when made separable as shown is preferably of somewhatthicker material and relatively stiffer than the body I, rendering thedevice more convenient to handle and also avoiding a floppy or overlyiiexible device. Of course where the body'and handle areintegral, thehandle may be stiffened by reenforcing or ribbing in any of the commonand well known manners. The handle may, if desired, be provided with ascale or ruler as indicated at 5 for convenience of the typist,divisions being in inches or such other spaces as may be preferred.

As shown in Fig. 1, I0 represents what may be termed an original sheetupon which the writing is produced by the type in the usual manner andI2 represents the ordinary sheet of carbon paper which is arranged withthe carbon face or side in contact with the sheet I3 which may bedesignated as the carbon copy sheet. I have also indicated writing orcharacters I4 which have been placed on the original sheet in due courseof business or operations. Assuming that it is desired to erasesomething onA the face of the original sheet, the original sheet andcarbon sheet I2 may be turned back and the protector inserted at thedesired point to-wit, under the material to be erased on the originalsheet I0. The body part 4 is of a size to cover a reasonably substantialportion of the carbon imprint. If the body I is made of a transparent orsemitransparent material it may be readily located over the proper placeon the carbon copy sheet, but generally this location may be readilyfound from practice. After the device has been inserted between thesheet I3 and the carbon sheet I2, the erasure may be made on theoriginal sheet I0 but the pressure or rubbing on the original sheet willnot cause a smearing on the carbon copy sheet as would be the case ifthe erasure was made without inserting a protector or without removingthe papers from the machine. The material of the body part is preferablysuch that it will not absorb or pick up carbon on the bod7 sheet. It is,of course, understood that after the erasure has been made on theoriginal sheet, a similar erasure may be made on the carbon copy sheetafter which the sheets are turned back and correction is made on theoriginal, which will, of course, be duplicated on the carbon copy sheetI3.

It is obvious that the handle portion 2 need not be made of the samematerial as the body part, although I generally prefer to make it ofWhat I claim as new and desire to secure by Letters Patent is: f

1. A sheet protector of the kind described consisting of a body part ofsuitable thin flexible material of a length and widthto overlie areasonably substantial portion of an imprint on a second or carbon copysheet and underlie a like portion of the print on an original sheetsuperimposed over the carbon copy sheet and interposed sheet of carbonpaper, said body part provided With a handle portion disposedsubstantially in the same plane and projecting from one end and oisetwith respect to said body part, said handle portion of less Width thanvthe body of the sheet and relatively stiffer.

2. A sheet protector of the kinddescribed consisting of a body part ofsuitable-thin flexible material of a length and Width` to overlie areasonably substantial portion of an imprint on a second or carbon copysheet and underlie a like portion of the print on an original sheetsuperimposed over the carbon copy sheet and interposed sheet of carbonpaper, said body part constructed of a material that will not absorb orpick up a carbon impression on the carbon copy sheet, said body partbeing provided with a handle portion disposed in the plane of said bodypart and projecting from one end thereof and in offcenter relation tosaid body part, said handle being relatively-stiier than the bodyportion.

. 3. A sheet protector of the kind described consisting of a body partof suitable material of a length and width to overlie a reasonablysubstantial portion of an imprint on a carbon copy sheet and underlie alike portion of the writing on an original superimposed sheet and asheet of carbon paper overlying the copy sheet, said body partconstructed of a transparent material to aid in locating the same uponsaid carbon copy sheet, said material being of a kind that will notabsorb or pick up a Vcarbon impression on the carbon copy sheet, saidbody provided with a portion constituting a handle projecting from onelateral edge thereof and parallel with respect thereto, said handlerelatively stiffer than the body portion.

4. A Vsheet protector of the kind described consisting of a body part ofsuitable material of a length and width to overlie a portion of animprint on a carbon copy sheet and underlie a portion of the print on asheet superimposed over the copy sheet and a sheet of carbon paper, saidbody part provided with a portion constituting a handle projecting fromone lateral edge thereof, said body part and said handle beingsubstantially co-extensive in the same plane.

5. An eraser guard for multiple typewritten copy sheets comprising arelatively thin flexible shield, and a handle for inserting said shieldto any point between said sheets, said handle being of relatively stiffmaterial and connected With said shield parallel to one edge thereof andextending only along a portion of said shield, whereby the remainingportion of said shield may freely flex with respect to said handle.

6. An eraser guard for multiple typewritten copy sheets comprising aflexible shield of normally flat material, and a handle of substantiallystiff material for inserting said shield to any point between saidsheets, said handle being connected in lateral oiset relation to saidshield in one direction thereof and terminating intermediate the lengththereof in the other direction whereby free flexing of said shield isattained laterally of and beyond the end of said substantially stiffhandle.

CHARLES J. LEONARD.

